In Healing Meaning and Purpose, I twice mention the impact of toxins: first I mention that environmental factors are now generally believed to contribute to many tumors. Three years ago the World Health Organization estimated that environmental factors are responsible for between one-quarter and one-third of the global burden of disease. Since the creation of synthetic inorganic and organic chemicals in the late 19th century, the global community has faced an enormous rise in the production and subsequent exposure to environmental chemicals, many of which are potentially toxic. The concentrations of many of these chemicals remain quite low, but a key observations if that combinations of chemicals may produce significant health hazards not generally seen with small concentrations of each individual chemical. There is a synergy that forms between them.
Secondly I mentioned the intriguing hypothesis that environmental toxins are a factor in the obesity pandemic.
The first of these has just received significant support from a study by Tyrone Hayes and colleagues from the University of California at Berkeley. They studied frogs in York County, Nebraska, and found that a mixture of nine chemicals found in a seed-corn field killed a third of exposed tadpoles and in the survivors lengthened the time to metamorphosis by two weeks. This work confirms the point that I made: individually low concentrations of the chemicals have little effect on developing tadpoles. But add them together and the effects can be devastating. This study is cited together with several others in a thoughtful article in the current edition of Scientific American.
Understanding the damaging effects of combinations of chemicals, or the disease-producing effects of a combination of minor risk factors, was one of the planks that allowed us to construct the new and growing science of Information Medicine, in which combinations are the key to successful treatment.
Technorati tags: integrated medicine, toxins, information medicine
Comments